Inventor
AKESAKA TOSHIO
JP36 patents
⚠️ This page may combine multiple inventors who share the name “AKESAKA TOSHIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ISEKI KAIHATSU KOKI
32 patentsUS5393172AFeb 28, 1995
Shield tunneling machine
ISEKI KAIHATSU KOKI29 citations92
US5296915AMar 22, 1994
Method and apparatus for controlling direction of excavating machine
ISEKI KAIHATSU KOKI31 citations92
US4886396ADec 12, 1989
Existing pipeline renewing method and apparatus therefor
ISEKI KAIHATSU KOKI26 citations92
US4692062ASep 8, 1987
Shield type tunneling machine
ISEKI KAIHATSU KOKI26 citations92
US4406498ASep 27, 1983
Shield tunneling method and machine therefor
ISEKI KAIHATSU KOKI30 citations92
US4311344AJan 19, 1982
Shield-type tunneling machine with toggle controlled bit plates in cutter disc
ISEKI KAIHATSU KOKI32 citations92
US4662606AMay 5, 1987
Pipe propelling device
ISEKI KAIHATSU KOKI16 citations82
US4624605ANov 25, 1986
Shield tunneling apparatus
ISEKI KAIHATSU KOKI22 citations82
US5102201AApr 7, 1992
Shield tunnelling machine
ISEKI KAIHATSU KOKI21 citations80
US4311411AJan 19, 1982
Pipe jacking apparatus
ISEKI KAIHATSU KOKI20 citations75
US5797202AAug 25, 1998
Vertical hole excavating machine
ISEKI KAIHATSU KOKI10 citations74
US5392897AFeb 28, 1995
Conveyor
ISEKI KAIHATSU KOKI14 citations74
US5193938AMar 16, 1993
Method and apparatus for laying pipe
ISEKI KAIHATSU KOKI15 citations74
US5123708AJun 23, 1992
Shield tunnelling machine
ISEKI KAIHATSU KOKI18 citations74
US5078545AJan 7, 1992
Method for boring hole in the ground and apparatus therefor
ISEKI KAIHATSU KOKI17 citations74
US5061120AOct 29, 1991
Direction correcting device for shield tunnelling machine
ISEKI KAIHATSU KOKI19 citations74
US5013189AMay 7, 1991
Intermediate pipe-jacking apparatus
ISEKI KAIHATSU KOKI9 citations74
US4964580AOct 23, 1990
Crushing machine
ISEKI KAIHATSU KOKI15 citations74
US4915543AApr 10, 1990
Existing pipeline renewing method and apparatus therefor
ISEKI KAIHATSU KOKI19 citations74
US4898498AFeb 6, 1990
Thrust transmitting device
ISEKI KAIHATSU KOKI10 citations74
US4886394ADec 12, 1989
Shield tunneling machine
ISEKI KAIHATSU KOKI10 citations74
US4874268AOct 17, 1989
Method and apparatus for building pipeline and shield tunnelling machine
ISEKI KAIHATSU KOKI12 citations74
US4869619ASep 26, 1989
Method for excavating hole and apparatus therefor
ISEKI KAIHATSU KOKI15 citations74
US4830539AMay 16, 1989
Pipe propelling apparatus
ISEKI KAIHATSU KOKI13 citations74
US4691787ASep 8, 1987
Earth auger
ISEKI KAIHATSU KOKI14 citations74
US5054976AOct 8, 1991
Inside processing apparatus
ISEKI KAIHATSU KOKI12 citations70
US5538362AJul 23, 1996
Shield excavator
ISEKI KAIHATSU KOKI7 citations68
US4630869ADec 23, 1986
Shield tunneling machine
ISEKI KAIHATSU KOKI18 citations67
US4815695AMar 28, 1989
Pipe propelling device
ISEKI KAIHATSU KOKI3 citations63
US5370479ADec 6, 1994
Shielding apparatus
ISEKI KAIHATSU KOKI1 citations52
US5157982AOct 27, 1992
Rotary actuator
ISEKI KAIHATSU KOKI1 citations48
US5190407AMar 2, 1993
Rectangular shield excavating machine
ISEKI KAIHATSU KOKI1 citations47